Tag Archives: distribution

Modelling the distribution and species richness of introduced vertebrates on New Zealand offshore islands

The offshore islands of New Zealand provide a unique opportunity to investigate insular biogeography with respect to relatively recently introduced vertebrate taxa (c. 200 years ago), whose colonisation and expansion across an entire archipelago is well documented. In the past the factors that have influenced the distribution of introduced species have generally been qualitatively assumed. […]

Distribution and diet of chamois ( Rupicapra rupicapra) in Westland forests, South Island, New Zealand

Chamois (Rupicapra rupicapra) are usually considered an alpine species in New Zealand, but also occur in forests in areas such as Westland. A postal survey of commercial helicopter-based hunters indicated that chamois are present within Westland forests from timberline to sea level and are most abundant within an area of about 1600 km2 extending from […]

Wild Dog Policy

Wild dogs, including dingoes, may cause substantial losses to livestock. They may also have significant impacts upon the distribution and abundance of native wildlife. However, there is an expectation that the dingo should be conserved because it arrived in Australia prior to European settlement. Furthermore, wild dogs in general may play an important role in […]

Pest Animal Survey 2002

This publication contains an analysis, by agriculture researchers, of pest animal distribution and abundance across NSW and ACT, particularly those pests that can impact on the environment and agriculture, and have the potential to act as reservoirs of exotic animal disease. Maps are included.

Factors influencing the spatial distribution of introduced birds on arable farms in New Zealand

In New Zealand, the agricultural and horticultural industries view many introduced bird species as significant crop pests. In the arable sector, for example, introduced passerine species, such as house sparrows and greenfinches, cause substantial damage to high-value speciality crops, e.g., radish seed. Bird control techniques currently used by farmers such as scarers, shooting, repellents and […]

Distribution, biology and likely impacts of the introduced redfin perch (Perca fluviatilis) (Percidae) in Western Australia

Within Western Australia, Perca fluviatilis is restricted to the south-western corner and is found in the Swan, Murray, Harvey, Collie, Capel, Carbunup, Margaret, Blackwood, Donnelly and Warren river systems. Age data suggest it was released into Big Brook Dam (Warren River) in 1992 or 1993, where it has since played a role in eliminating the […]

Distribution and density estimates for urban foxes (Vulpes vulpes) in Melbourne: implications for rabies control

The distribution and density of red fox populations was investigated in metropolitan Melbourne from 1990 to 1993. Distribution data were collected from sightings reported by members of the public, from spotlight and active den surveys, and from trapping and road kills. Archival data suggested that resident populations of foxes have been present within the inner […]

Natural histories of Australia’s stick-nest rats, genus Leporillus (Rodentia : Muridae)

The former distributions of stick-nest rats (Leporillus conditor and L. apicalis), both extinct on the Australian mainland since about the 1930s, were determined from literature reports, museum records, interview responses and field surveys of key areas. Population parameters were determined for L. conditor from early literature accounts, studies of remnant stick-nests in caves, a three-year […]

The origin and history of the British fauna

Considers the Irish stoat a representative of an earlier invasion that survived the last glaciation, whereas the British stoat is derived from a later invasion so is not distinct from the European subsp. Stoats on Jura could be a hybrid. In large populations, new subspecific characters do not evolve in